Collaborative Research: A Simulation and Theoretical Analysis of Meteor Evolution over Scales Ranging from Sub-microseconds to Minutes
合作研究:亚微秒到分钟尺度的流星演化模拟与理论分析
基本信息
- 批准号:2301645
- 负责人:
- 金额:$ 32.7万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2023
- 资助国家:美国
- 起止时间:2023-06-01 至 2026-05-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Every day billions of extremely small particles, typically weighing less than a grain of sand, impact the Earth’s upper atmosphere. These particles seed the upper atmosphere with an array of metal ions and atoms which have important effects on the chemistry of the atmosphere and play a role in creating dust, which in turn seeds clouds. This award will further develop the field of meteor physics through modeling meteor evolution from their point of entry into the atmosphere through their dissipation. We will use radar observations to test our models and understandings. The research has a wide range of applications. Spacecraft designers need to know the distribution of particle orbits and masses in order to reduce potential hazards. Solar system scientists use meteoroid population characteristics to better understand the outer solar system and its evolution. Atmospheric scientists apply meteoroid data to estimate the amount of material deposited in the upper atmosphere and its chemical evolution. A deeper understanding of meteor plasma physics will improve the broader scientific and engineering community’s knowledge of meteor and upper atmosphere geoscience. This project involves members of underrepresented groups and supports graduate and undergraduate students. The code developed will be open source. The team will continue their efforts to share their knowledge and enthusiasm about space and meteor science with the larger community through outreach to the media, K-12 schools, and at universities through public talks. This will broadly enhance STEM education and talent. Over the past decades, meteor researchers have used simulations, theory, and observations to study meteor plasma dynamics and their radar measurements. This award will extend this work to areas that remain poorly understood: the early stage of meteor ablation, the behavior of meteor-induced plasma waves, the interaction between a spatially variable atmosphere and meteors, and the scattering of radio waves by meteor plasmas. The team will generate new models more accurate and reliable than those that currently exist, and then apply these physics-based models to interpret data collected by radars. This award will help answer the following questions: (1) How rapidly does ablation proceed for various meteoroids? (2) How do meteor plasmas evolve from their initial ablation and ionization through the early-stage kinetic expansion to their later-stage diffusion and turbulence? (3) Can more accurate theoretical and computational models improve researchers’ quantitative understanding of radio wave scattering? (4) How do large-scale atmospheric inhomogeneities and neutral wind shears modify the evolution of long-lived plasma trails produced by meteoroids? Answering these questions will lead to progress in understanding atmospheric dynamics between 75 and 120 km altitude. It will provide better interpretations of measurements made by radar and optics. This research will address the first scientific goal listed on the NSF/Aeronomy Program Description: “Dynamics and energetics of the upper atmosphere, with particular emphasis on the hard-to-observe region between 80 and 150 km.”This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
每天,数十亿个极小的颗粒(通常重量小于一粒沙子)撞击地球的高层大气,这些颗粒在高层大气中播撒一系列金属离子和原子,这些金属离子和原子对大气的化学成分产生重要影响,并发挥着重要作用。该奖项将通过模拟流星从进入大气层到消散的演化过程,进一步发展流星物理学领域。有广泛的航天器设计者需要了解粒子轨道和质量的分布,以减少潜在的危险。太阳系科学家利用流星体的特征来更好地了解太阳系外层及其演化,大气科学家利用流星体数据来估计物质的数量。对流星等离子体物理学的更深入了解将提高更广泛的科学和工程界对流星和高层大气地球科学的了解,并支持研究生和本科生开发的代码。将会开放该团队将继续努力通过媒体、K-12 学校和大学的公开演讲与更大的社区分享他们对空间和流星科学的知识和热情。在过去的几十年里,流星研究人员利用模拟、理论和观测来研究流星等离子体动力学及其雷达测量,该奖项将把这项工作扩展到人们仍然知之甚少的领域:流星烧蚀的早期阶段、流星的行为。感应等离子体波,空间变化的大气和该团队将生成比现有模型更准确、更可靠的新模型,然后应用这些基于物理的模型来解释雷达收集的数据。问题:(1)各种流星体的烧蚀速度有多快?(2)流星等离子体如何从最初的烧蚀和电离,到早期的动力学膨胀,再到后期的扩散和湍流?理论的和计算模型提高了研究人员对无线电波散射的定量理解?(4)大规模大气不均匀性和中性风切变如何改变流星体产生的长寿命等离子体轨迹的演化?它将为雷达和光学测量提供更好的解释,该研究将解决 NSF/航空学计划描述中列出的第一个科学目标:“高空的动力学和能量学”。该奖项反映了 NSF 的法定使命,并通过使用基金会的智力价值和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Sigrid Elschot其他文献
Sigrid Elschot的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Sigrid Elschot', 18)}}的其他基金
Characterization of Meteoroids and Meteors through Simulations and Remote Sensing Using High-Power Large-Aperture Radars
使用高功率大孔径雷达通过模拟和遥感表征流星体和流星
- 批准号:
2048349 - 财政年份:2021
- 资助金额:
$ 32.7万 - 项目类别:
Standard Grant
CEDAR: Atmospheric Neutral Density Dynamics through Meteor Observations
CEDAR:通过流星观测的大气中性密度动力学
- 批准号:
1920383 - 财政年份:2019
- 资助金额:
$ 32.7万 - 项目类别:
Standard Grant
GEM: Extending the Capabilities of CubeSats for Measuring Radiation Belt Precipitation
GEM:扩展 CubeSat 测量辐射带降水的能力
- 批准号:
1602607 - 财政年份:2016
- 资助金额:
$ 32.7万 - 项目类别:
Continuing Grant
Collaborative Research: CubeSat: A U.S. CubeSat Constellation for the QB50 Mission (QBUS)
合作研究:CubeSat:用于 QB50 任务 (QBUS) 的美国 CubeSat 星座
- 批准号:
1242912 - 财政年份:2014
- 资助金额:
$ 32.7万 - 项目类别:
Continuing Grant
CEDAR: Thunderstorm Coupling to the Lower Ionosphere through Electromagnetic, Acoustic, and Gravity Waves
CEDAR:雷暴通过电磁波、声波和重力波与低电离层耦合
- 批准号:
1243176 - 财政年份:2013
- 资助金额:
$ 32.7万 - 项目类别:
Continuing Grant
Global Impact of Lightning-Generated VLF Waves on Radiation Belt Electron Losses
闪电产生的甚低频波对辐射带电子损耗的全球影响
- 批准号:
1139321 - 财政年份:2013
- 资助金额:
$ 32.7万 - 项目类别:
Standard Grant
CAREER: Meteor and Meteoroid Characterization Using High-Power Large-Aperture Radar Data
职业:使用高功率大孔径雷达数据表征流星和流星体
- 批准号:
1056042 - 财政年份:2011
- 资助金额:
$ 32.7万 - 项目类别:
Standard Grant
Collaborative Research: CEDAR--Tomographic Array for Lightning and Ionospheric Studies (TALIS)
合作研究:CEDAR——用于闪电和电离层研究的断层扫描阵列 (TALIS)
- 批准号:
0836510 - 财政年份:2009
- 资助金额:
$ 32.7万 - 项目类别:
Continuing Grant
Collaborative Research: CEDAR--Tomographic Array for Lightning and Ionospheric Studies (TALIS)
合作研究:CEDAR——用于闪电和电离层研究的断层扫描阵列 (TALIS)
- 批准号:
1025262 - 财政年份:2009
- 资助金额:
$ 32.7万 - 项目类别:
Continuing Grant
相似国自然基金
基于类脑模拟的早期精神分裂症一体化可靠诊断方法研究
- 批准号:62302090
- 批准年份:2023
- 资助金额:30 万元
- 项目类别:青年科学基金项目
基于鞘层Monte Carlo粒子仿真模型的非稳态真空弧等离子体羽流的内外流一体化数值模拟研究
- 批准号:12372297
- 批准年份:2023
- 资助金额:53 万元
- 项目类别:面上项目
面向开放式地理模拟的WRF模拟知识表达与共享研究
- 批准号:42371425
- 批准年份:2023
- 资助金额:46 万元
- 项目类别:面上项目
肠道菌群短链脂肪酸代谢物通过组蛋白去乙酰化酶HDAC2/ELK1通路调控模拟失重下成骨细胞分化和骨形成的机制研究
- 批准号:82302112
- 批准年份:2023
- 资助金额:30 万元
- 项目类别:青年科学基金项目
生态补水河道的河岸林GSPAC水分转化机理的同位素示踪与模拟研究
- 批准号:42371036
- 批准年份:2023
- 资助金额:46 万元
- 项目类别:面上项目
相似海外基金
Collaborative Research: Moire Exciton-polariton for Analog Quantum Simulation
合作研究:用于模拟量子模拟的莫尔激子极化
- 批准号:
2344658 - 财政年份:2024
- 资助金额:
$ 32.7万 - 项目类别:
Standard Grant
Collaborative Research: SHF: Medium: Enabling Graphics Processing Unit Performance Simulation for Large-Scale Workloads with Lightweight Simulation Methods
合作研究:SHF:中:通过轻量级仿真方法实现大规模工作负载的图形处理单元性能仿真
- 批准号:
2402804 - 财政年份:2024
- 资助金额:
$ 32.7万 - 项目类别:
Standard Grant
Collaborative Research: SHF: Medium: Enabling GPU Performance Simulation for Large-Scale Workloads with Lightweight Simulation Methods
合作研究:SHF:中:通过轻量级仿真方法实现大规模工作负载的 GPU 性能仿真
- 批准号:
2402806 - 财政年份:2024
- 资助金额:
$ 32.7万 - 项目类别:
Standard Grant
Collaborative Research: Material Simulation-driven Electrolyte Designs in Intermediate-temperature Na-K / S Batteries for Long-duration Energy Storage
合作研究:用于长期储能的中温Na-K / S电池中材料模拟驱动的电解质设计
- 批准号:
2341994 - 财政年份:2024
- 资助金额:
$ 32.7万 - 项目类别:
Standard Grant
Collaborative Research: SHF: Medium: Enabling GPU Performance Simulation for Large-Scale Workloads with Lightweight Simulation Methods
合作研究:SHF:中:通过轻量级仿真方法实现大规模工作负载的 GPU 性能仿真
- 批准号:
2402805 - 财政年份:2024
- 资助金额:
$ 32.7万 - 项目类别:
Standard Grant